netdev - [patch 4/6] mISDN: fix reversed if in st_own

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Message-Id: <200909181953.n8IJr4cS026252@imap1.linux-foundation.org>
Date:	Fri, 18 Sep 2009 12:53:04 -0700
From:	akpm@...ux-foundation.org
To:	isdn@...ux-pingi.de
Cc:	netdev@...r.kernel.org, akpm@...ux-foundation.org,
	error27@...il.com
Subject: [patch 4/6] mISDN: fix reversed if in st_own_ctrl()

From: Dan Carpenter <error27@...il.com>

The current code probably returns -EINVAL a lot.  Otherwise it would oops.

Compile tested only.  Found by smatch (http://repo.or.cz/w/smatch.git).

Signed-off-by: Dan Carpenter <error27@...il.com>
Cc: Karsten Keil <isdn@...ux-pingi.de>
Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
---

 drivers/isdn/mISDN/stack.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff -puN drivers/isdn/mISDN/stack.c~misdn-fix-reversed-if-in-st_own_ctrl drivers/isdn/mISDN/stack.c
--- a/drivers/isdn/mISDN/stack.c~misdn-fix-reversed-if-in-st_own_ctrl
+++ a/drivers/isdn/mISDN/stack.c
@@ -364,7 +364,7 @@ add_layer2(struct mISDNchannel *ch, stru
 static int
 st_own_ctrl(struct mISDNchannel *ch, u_int cmd, void *arg)
 {
-	if (!ch->st || ch->st->layer1)
+	if (!ch->st || !ch->st->layer1)
 		return -EINVAL;
 	return ch->st->layer1->ctrl(ch->st->layer1, cmd, arg);
 }
_
--
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